Publications associées à Security guard

Misuse-Resistant Variants of the OMD Authenticated Encryption Mode

Serge Vaudenay, Damian Vizár, Reza Reyhanitabar

We present two variants of OMD which are robust against nonce misuse. Security of OMD---a CAESAR candidate---relies on the assumption that implementations always ensure correct use of nonce (a.k.a. message number); namely that, the nonce never gets repeate ...

Springer-Verlag Berlin2014

Security Vulnerabilities of the Cisco IOS Implementation of the MPLS Transport Profile

Jean-Yves Le Boudec, Sergio Barreto Andrade, Teklemariam Tsegay Tesfay, Udaya Upul Kumara Jayasinghe, Miroslav Popovic

We are interested in the security of the MPLS Transport Profile (MPLS-TP), in the context of smart-grid communication networks. The security guidelines of the MPLS-TP standards are written in a complex and indirect way, which led us to pose as hypothesis t ...

2014

Location leakage in distance bounding: Why location privacy does not work

Serge Vaudenay, Aikaterini Mitrokotsa

In many cases, we can only have access to a service by proving we are sufficiently close to a particular location (e.g. in automobile or building access control). In these cases, proximity can be guaranteed through signal attenuation. However, by using add ...

Elsevier2014

Secure & Lightweight Distance-Bounding

Serge Vaudenay, Aikaterini Mitrokotsa

Distance-bounding is a practical solution to be used in security-sensitive contexts, mainly to prevent relay attacks. The main challenge when designing such protocols is maintaining their inexpensive cryptographic nature, whilst being able to protect again ...

2013

HELEN: A Public-Key Cryptosystem Based on the LPN and the Decisional Minimal Distance Problems

Serge Vaudenay, Alexandre Raphaël Duc

We propose HELEN, a code-based public-key cryptosystem whose security is based on the hardness of the Learning from Parity with Noise problem (LPN) and the decisional minimum distance problem. We show that the resulting cryptosystem achieves indistinguisha ...

Springer2013

Game Theory Meets Network Security and Privacy

Jean-Pierre Hubaux

This survey provides a structured and comprehensive overview of research on security and privacy in computer and communication networks that use game-theoretic approaches. We present a selected set of works to highlight the application of game theory in ad ...

Assoc Computing Machinery2013

The Bussard-Bagga and Other Distance-Bounding Protocols under Attacks

Serge Vaudenay, Aikaterini Mitrokotsa, Asli Bay, Iosif-Daniel Spulber

The communication between an honest prover and an honest verifier can be intercepted by a malicious man-in-the-middle (MiM), without the legitimate interlocutors noticing the intrusion. The attacker can simply relay messages from one party to another, even ...

Springer,2012

HELEN: a Public-key Cryptosystem Based on the LPN Problem (Extended Abstract)

Serge Vaudenay, Alexandre Raphaël Duc

We propose HELEN, a new code-based public-key cryptosystem whose security is based on the hardness of the Learning from Parity with Noise problem~(LPN) and the decisional minimum distance problem. We show that the resulting cryptosystem achieves indistingu ...

2012

Ron was wrong, Whit is right

Arjen Lenstra, Joppe Willem Bos, Thorsten Kleinjung, Maxime Augier, Christophe Wachter

We performed a sanity check of public keys collected on the web. Our main goal was to test the validity of the assumption that different random choices are made each time keys are generated. We found that the vast majority of public keys work as intended. ...

IACR2012

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Security guard

Misuse-Resistant Variants of the OMD Authenticated Encryption Mode

Security Vulnerabilities of the Cisco IOS Implementation of the MPLS Transport Profile

Location leakage in distance bounding: Why location privacy does not work

Secure & Lightweight Distance-Bounding

Using Face Morphing to Protect Privacy

HELEN: A Public-Key Cryptosystem Based on the LPN and the Decisional Minimal Distance Problems

Game Theory Meets Network Security and Privacy

The Bussard-Bagga and Other Distance-Bounding Protocols under Attacks

HELEN: a Public-key Cryptosystem Based on the LPN Problem (Extended Abstract)

Ron was wrong, Whit is right

Graph Chatbot

Chattez avec Graph Search

Security Vulnerabilities of the Cisco IOS Implementation of the MPLS Transport Profile

Secure & Lightweight Distance-Bounding

HELEN: A Public-Key Cryptosystem Based on the LPN and the Decisional Minimal Distance Problems

Using Face Morphing to Protect Privacy

Misuse-Resistant Variants of the OMD Authenticated Encryption Mode

Location leakage in distance bounding: Why location privacy does not work

Game Theory Meets Network Security and Privacy

HELEN: a Public-key Cryptosystem Based on the LPN Problem (Extended Abstract)

The Bussard-Bagga and Other Distance-Bounding Protocols under Attacks

Ron was wrong, Whit is right